Arnold Schwarzenegger has discussed his experience of waking up from having emergency open-heart surgery.
The actor, 72, said that he had to undergo the procedure four months before he was due to start filming for Terminator: Dark Fate.
During an online graduation speech recorded for media company ATTN:, he said that doctors had originally intended to repair one of his heart valves but ended up having to do open-heart surgery because of complications.
File photo dated 15/11/2014 of Arnold Schwarzenegger who has reassured fans after a video emerged showing him being drop-kicked in the back during an event in South Africa.
The governor of Sao Paulo, Joao Doria, (PSDB) received on Apr. 14, 2019 at the Bandeirantes Palace, the actor and former Governor of California Arnold Schwarzenegger to discuss actions of sustainability and green economy in Sao Paulo, Brazil. (Photo by Roberto Casimiro/Fotoarena/Sipa USA)
February 18, 2018; Los Angeles, CA, USA; Film actor Arnold Schwarzenegger in attendance as Team LeBron plays against Team Stephen during the first half of the 2018 NBA All Star Game at Staples Center. Mandatory Credit: Bob Donnan-USA TODAY Sports
LOS ANGELES - OCTOBER 30: (L-R) Christina Schwarzenegger, Arnold Schwarzenegger, Patrick Schwarzenegger, Maria Shriver and Katherine Schwarzenegger attend the premiere event for National Geographic�s global miniseries, "The Long Road Home" at Royce Hall on October 30, 2017 in Los Angeles, California. National Geographic�s eight-part global event series "The Long Road Home", a gripping and intimate look at the toll war takes on soldiers and their families, will debut with a special two-hour premiere Tuesday, Nov. 7, 2017, at 9/8c. The series moves to its regular date and time of Tuesdays at 10/9c beginning Nov. 14. (Photo by Scott Kirkland/National Geographic/PictureGroup)
Oct 3, 2017; Washington, DC, Former Republican Governor of California Arnold Schwarzenegger outside of the Supreme Court after oral arguments were heard inside the Supreme Court in Washington, DC. In the Gill v. Whitford gerrymandering case, Wisconsin Democrats argue that Republicans drew congressional district lines that all but guarantee GOP control of both houses of the state legislature. Mandatory Credit: Jack Gruber-USA TODAY NETWORK
Joao Doria, the mayor of the city of S�o Paulo, receives the actor, bodybuilder and politician Arnold Schwarzenegger (69) in the Matarazzo Building, central region of the capital in Sao Paulo, Brazil on April 24, 2017. (Photo by Fotoarena) Jo�o D�ria, prefeito da cidade de S�o Paulo, recebe na manh� desta segunda-feira (24) o ator, fisiculturista e pol�tico Arnold Schwarzenegger (69), no Edif�cio Matarazzo, regi�o central da capital. *** Please Use Credit from Credit Field ***
Arnold Schwarzenegger at "The New Celebrity Apprentice" Press Conference held at the Universal Studios Lot, Stage 17 in Universal City, CA on Friday, December 9, 2016. (Photo By Sthanlee B. Mirador) *** Please Use Credit from Credit Field ***
(L-R) Arnold Schwarzenegger and Boy George at "The Celebrity Apprentice" Season 8 Press Junket held at the Fairmont Miramar Hotel & Bungalows in Santa Monica, CA on Thursday, January 28, 2016. (Photo By Sthanlee B. Mirador) *** Please Use Credit from Credit Field ***
Arnold Schwarzenegger (left), Emilia Clarke (centre), and Jake Gyllenhaal (right) during filming of the Graham Norton Show at the London Studios, south London, to be aired on Friday.
Arnold Schwarzenegger in conversation with host Jonathan Ross during 'An Evening with Arnold Schwarzenegger', at the Lancaster London Hotel in London.
Kelsey Grammer, Arnold Schwarzenegger, and Antonio Banderas ride an armored military vehicle on the Croisette at the Expendables 3 photo call at the Cannes Film Festival on May 18, 2014, in Cannes, France. Francis Specker /Landov
Sylvester Stallone, Arnold Schwarzenegger and Harrison Ford at the Expendables 3 press conference at the Cannes Film Festival on May 18, 2014, in Cannes, France. Francis Specker /Landov
Arnold Schwarzenegger and Emma Thompson at the Empire Magazine Film Awards held at the Grosvenor Hotel, London.
Arnold Schwarzenegger and son Patrick arriving at the UK Premiere of The Last Stand, Odeon West End Cinema, Leicester Square,, London.
Photo Doug Peters EMPICS Entertainment
Guests Arnold Schwarzenegger and Miranda Hart during filming of The Graham Norton Show (TX: 22.35 Friday October 19, BBC One), at The London Studios in south London.
Sylvester Stallone and Arnold Schwarzenegger arriving for the UK Premiere of The Expendables 2, at the Empire Cinema, Leicester Square, London.
Arnold Schwarzenegger arriving for the UK Premiere of The Expendables 2, at the Empire Cinema, Leicester Square, London.
Arnold Schwarzenegger and Sylvester Stallone arriving for the UK Premiere of The Expendables 2, at the Empire Cinema, Leicester Square, London.
Mayor Boris Johnson (left) and Arnold Schwarzenegger take a ride on the Emirates cable car from Greenwich to the ExCeL in Docklands, after watching the Olympic basketball in Greenwich.
A file photo of Actor Arnold Schwarzenegger and his wife Maria Shriver acknowledge the crowd during Schwarzenegger's victory celebration party at the Century Plaza Hotel in Los Angeles on October 7, 2003. The power-couple's marriage has collapsed amid revelations that Schwarzenegger fathered a child with their live-in housekeeper 14 years ago but hid the truth from his wife which prompted wife Maria Shriver to leave the couple's home before they announced their separation. Photo:
London Mayor Boris Johnson takes former Governor of California Arnold Schwarzenegger (right) for a ride on one of his 'Boris bikes' during his visit to City Hall in London.
Prime Minister David Cameron and Governor of California Arnold Schwarzenegger watch the changing of the guard, during a visit to Wellington Barracks in central London.
Governor of California Arnold Schwarzenegger meets soldiers during a visit to Wellington Barracks in central London.
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"I woke up 16 hours later instead of four hours and there was a tube sticking out of my mouth," he said.
"Something went wrong during this non-invasive surgery and then it became invasive.
"They said that they broke through the heart wall and there was internal bleeding and I could have died if they didn't open up my sternum and do open-heart surgery."
Schwarzenegger added: "The reason why I'm telling you all this is because no matter how successful you are, life will throw obstacles in your path, like it was with my heart surgery or your graduation now.
"But if you have a very clear vision like I talked about earlier, of exactly what you want to do and who you want to be, you can go and find a way around all of these obstacles."
The actor also told the graduates that the challenges they are facing because of the coronavirus pandemic will help them prepare for the future.
He said: "I can promise you this coronavirus won't be the last obstacle that you face.
"But it can help you prepare for the next one.
"That's what life is all about, overcoming obstacles."